CN201818307U - Retractable cutting arm of tunneling machine - Google Patents
Retractable cutting arm of tunneling machine Download PDFInfo
- Publication number
- CN201818307U CN201818307U CN2010205506110U CN201020550611U CN201818307U CN 201818307 U CN201818307 U CN 201818307U CN 2010205506110 U CN2010205506110 U CN 2010205506110U CN 201020550611 U CN201020550611 U CN 201020550611U CN 201818307 U CN201818307 U CN 201818307U
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- China
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- cutting arm
- dead axle
- oil
- sealing block
- fixed shaft
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- Expired - Fee Related
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Abstract
The utility model discloses a retractable cutting arm of a tunneling machine, which comprises a cutting arm seat and a fixed shaft with one end fixedly mounted on the cutting arm seat. The fixed shaft is nested in the inner chamber of a movable shaft; one end of the movable shaft is fixedly connected with a cutting head; a sealing block is arranged on the fixed shaft; a sealing ring I and a sealing ring II are arranged on the movable shaft; an oil chamber I is formed between the sealing block and the sealing ring I; an oil chamber II is formed between the sealing block and the sealing ring II; the oil chamber I is communicated with an oil hole I through an oil pipe inside the fixed shaft; and the oil chamber II is communicated with an oil hole II through an oil pipe inside the fixed shaft. The retractable cutting arm provided by the utility model can extend forwards and retract according to work demands, so that a traveling mechanism does not need to get started frequently to complete excavation, the phenomena of complete machine sinking and crawler slipping of the tunneling machine in a coal road are reduced, and the excavation efficiency is improved.
Description
Technical field
The utility model relates to a kind of development machine, specifically relates to the scalable cutting arm of a kind of development machine.
Background technology
The not flexible of existing tunneling machine cutting arm, need frequently start walking mechanism in headwork moves forward cutterhead, when especially under colliery, working, under the situation of the soft many water of mine base plate, frequently start running gear, machine is easy to generate the complete machine depression or crawler belt skids, and has a strong impact on mining work.
Summary of the invention
The utility model aims to provide the scalable cutting arm of a kind of development machine, makes the tunneling machine cutting arm stretch out forward or withdraw according to need of work.
The technical solution adopted in the utility model is: the scalable cutting arm of a kind of development machine, comprise the cut arm seat, and an end is fixedly mounted on the dead axle on the cut arm seat, dead axle is nested in the moving axis inner chamber, the fixedly connected cutterhead of moving axis one end, sealing block is set on the dead axle, joint ring one, joint ring two are set on the moving axis, form oil pocket one between sealing block and the joint ring one, form oil pocket two between sealing block and the joint ring two, oil pocket one is communicated with oilhole one by the oil pipe of dead axle inside, and oil pocket two is communicated with oilhole two by the oil pipe of dead axle inside.
When pressure oil enters airtight oil pocket for the moment from oilhole once oil pipe, pressure oil applies forward thrust to joint ring one, and joint ring one promotes moving axis to front slide, the cutting arm elongation, and the cutterhead that is positioned at the moving axis termination stretches out forward; When pressure oil from entering oilhole two when oil pipe enters airtight oil pocket two, pressure oil applies backward thrust to joint ring two, joint ring two promotes moving axis and slides backward, and cuts the arm arm and shortens, the cutterhead that is positioned at the moving axis termination is withdrawn backward.
Therefore, when development machine is worked, can not start under the motionless situation of walking mechanism, fuselage, earlier the elongation cutting arm is finished the headwork of certain distance, finishes back withdrawal cutting arm, starts the walking mechanism certain distance that advances again, fixed main body then, extend the driving that cutting arm carries out certain distance again, so circulation can significantly reduce the number of times that starts the development machine walking mechanism and finishes the headwork in tunnel smoothly.
Nested Hollow Transmission Shafts in the above-mentioned dead axle inner chamber is installed in the cut motor transmission Hollow Transmission Shafts on the cut arm seat, and the Hollow Transmission Shafts other end is installed spline housing, and splined shaft is set in the spline housing, and splined shaft can slide in spline housing, splined shaft transmission cutterhead.The cut motor is installed on the cut arm seat, can alleviate cutterhead weight, and cutting arm is stressed few, and the life-span is long.
The utility model can make the tunneling machine cutting arm stretch out forward or withdraw according to need of work, finishes mining work and needn't frequently start walking mechanism, can reduce development machine the phenomenon that complete machine depression or crawler belt skid takes place in coal road, improves digging efficient.
Description of drawings
Fig. 1 is embodiment one schematic diagram of the present utility model.
Fig. 2 is embodiment two schematic diagrames of the present utility model.
The specific embodiment
Below, in conjunction with the accompanying drawings embodiment of the present utility model is described further.
Fig. 1 shows the embodiment one of the scalable cutting arm of a kind of development machine, comprise cut arm seat 1, and an end is installed in the dead axle 4 on the cut arm seat 1, dead axle 4 is nested in moving axis 5 inner chambers, dead axle 4 one ends are fixedly connected on the cut arm seat 1, the fixedly connected cutterhead 6 of moving axis 5 one ends, sealing block 41 is set on the dead axle 4, joint ring 1 is set on the moving axis 5, joint ring 2 52, form oil pocket 1 between sealing block 41 and the joint ring 1, form oil pocket 2 43 between sealing block 41 and the joint ring 2 52, oil pocket 1 is communicated with oilhole 1 by the oil pipe 421 that is arranged on dead axle 4 inside, and oil pocket 2 43 is communicated with oilhole 2 432 by the oil pipe 431 that is arranged on dead axle 4 inside.
Fig. 2 illustrates the embodiment two of the scalable cutting arm of a kind of development machine, nested Hollow Transmission Shafts 3 in dead axle 4 inner chambers, be installed in the cut motor 2 transmission Hollow Transmission Shafts 3 on the cut arm seat 1, Hollow Transmission Shafts 3 other ends are installed spline housing 7, splined shaft 71 is set in the spline housing 7, splined shaft 71 can slide in spline housing 7, splined shaft 71 transmission cutterheads 6.
Claims (2)
1. scalable cutting arm of development machine, comprise the cut arm seat, and an end is fixedly mounted on the dead axle on the cut arm seat, it is characterized in that dead axle is nested in the moving axis inner chamber, the fixedly connected cutterhead of moving axis one end, sealing block is set on the dead axle, joint ring one, joint ring two are set on the moving axis, form oil pocket one between sealing block and the joint ring one, form oil pocket two between sealing block and the joint ring two, oil pocket one is communicated with oilhole one by the oil pipe of dead axle inside, and oil pocket two is communicated with oilhole two by the oil pipe of dead axle inside.
2. the scalable cutting arm of development machine as claimed in claim 1, it is characterized in that nested Hollow Transmission Shafts in the dead axle inner chamber, be installed in the cut motor transmission Hollow Transmission Shafts on the cut arm seat, the Hollow Transmission Shafts other end is installed spline housing, splined shaft is set in the spline housing, splined shaft can slide in spline housing, splined shaft transmission cutterhead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205506110U CN201818307U (en) | 2010-10-04 | 2010-10-04 | Retractable cutting arm of tunneling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205506110U CN201818307U (en) | 2010-10-04 | 2010-10-04 | Retractable cutting arm of tunneling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201818307U true CN201818307U (en) | 2011-05-04 |
Family
ID=43916269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205506110U Expired - Fee Related CN201818307U (en) | 2010-10-04 | 2010-10-04 | Retractable cutting arm of tunneling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201818307U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305066A (en) * | 2011-08-26 | 2012-01-04 | 三一重型装备有限公司 | Coal mining machine and cutting roller device |
| CN102359374A (en) * | 2011-08-30 | 2012-02-22 | 湖南大地重型装备制造有限公司 | Retracting device of cutting arm of roadheader |
-
2010
- 2010-10-04 CN CN2010205506110U patent/CN201818307U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305066A (en) * | 2011-08-26 | 2012-01-04 | 三一重型装备有限公司 | Coal mining machine and cutting roller device |
| CN102305066B (en) * | 2011-08-26 | 2013-12-25 | 三一重型装备有限公司 | Coal mining machine and cutting roller device |
| CN102359374A (en) * | 2011-08-30 | 2012-02-22 | 湖南大地重型装备制造有限公司 | Retracting device of cutting arm of roadheader |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110504 Termination date: 20111004 |